Books



A. H. JoCEL-YN, or NEWCYORK, N. Y. Letters Patent No. 85,450, dated December 29, 1868.

IMPROVEMENT IN BINDING BOOKS The Schedule referred to in these Letters Patent and making part 4of the name.

To all whom it may conce/rn: Be it known that LA. H. J OCELYN, of the city, county, and State of New York, have invented a new and useful Improvement in Slated Books; and'I dohereby declare the following to be a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification, in which drawing- Figure 1 represents a plan of this invention when the book is open.

Figure 2 is a transverse section thereof, taken in the plane indicated by the line x x, iig.A 1, when the book is closed.

Figure 3 is a horizontal section of the same, 'the line y-y, g. 1, indicating the plane of section.

Similar letters indicate corresponding parts.

rlhis invention consists in the arrangement of slated leaves attached to the cover or any other part of a printed book, and made to fold outward in such a manner that, when the said slated leaves are turned out, the person reading the book is enabled to make memoranda, extracts, or calculations from either page of the book with ease and convenience.

It consists, also, in the arrangement of hooks and elastic bands, in combination with slated leaves and with a printed book, in such a manner that said slated leaves can be readily fastened at any convenient place 'between the printed leaves of the book, and that their and, in this latter case, it is made to fold, as shown at d, sil-that it can 'be turned out when it is to beused,

.and that it can be conveniently used with every page of the book, The slated surface mayalso be applied to the iiyfl'eaves b of the book,'or, if desired, both the cover and the {1y-leaves may be slated.

If desired, movable slated leaves-e may be used, which are provided with a hook, elastic band, or other suitable fastening, so that they canbe inserted and held between the ordinary printed leaves-c at any desired'place of the book. The slated leaves may also be ystitched between the ordinary printed leaves at any desired place.

i'lhis invention is of particular value for school-books, and, among those, principally arithmetics, so that the scholars are enabled to execute calculations on the slated surfaces connected to the book. .'But it is obviousv that the slated surfaces -can be applied with advantage to printed books of any description, since they enable the reader to,A make memoranda vorextracts without being obliged to look for a slate or slip of paper.

I do not claim broadly as my invention the combinatiouof a slated surface with a book, such combinar tion being shown in the patent of F. Shepherd, N ovember 2, 1858, and I. distinctly disclaim everything claimed and described in said patent.

I disclaim everything shown and described in the patent of F. B. W ells, dated October 20, 1868; but

XVhat I claim as new, and desire to secure by Letters Patent, is-

The arrangement of hinged slated leaves d, when 

